The reasons for the lack of edges and corners in the production of POM plastic parts

POM are easily decomposed by heat, and there is a troublesome problem. When the raw materials are decomposed by heat, impurities will be generated in the dead corner of the mold. For a long time, the accumulation of more and more, the dead corner will be filled with impurities, resulting in lack of injection molding [...]

8 ways to eliminate the black spots on transparent plastic parts or light-colored plastic parts

When producing transparent plastic parts, it often happens that the injection molding takes more than ten hours, or even a few days, and the black spots cannot be removed. Not only waste a lot of production time, but also waste a lot of the company's raw materials. Therefore, how to prevent the problem of many [...]

Injection machine adjusting techniques to prevent gas lines when fast filling is required

Difficult to fill raw materials and injection parts with larger and thinner sizes usually need to be filled with a faster injection speed to fill the cavity. However, many injection-molded parts will produce obvious ridges or gas lines around the gate, and problems such as scorching after injection of the injection parts. Especially when spraying [...]

The reasons and elimination of tiny pits on the bright plastic parts surface

When pitting occurs, it is easy to think about whether the mold is rusty. However, upon closer inspection, it was found that the mold was still quite bright and there were no small marks. After increasing the melt temperature and back pressure to improve the quality of the melt, the situation will improve, but sometimes [...]

Adjusting method for severely flashing of injection parts

Most of the junior and intermediate injection molding technicians only use the first-level injection method for injection molding production. Many problems such as overflow and shrinkage in production can be solved with only one-stage injection adjustment. As a result, it gradually became a habit that has not changed for many years. When there are some [...]

2 Matters that are easy to cause the flashing and always be ignored in plastic injection molding parts production

1, The melt filling speed is too slow Generally, too fast filling speed will cause problems such as overflow and white top. However, if the speed is too slow, it is also easy to cause such problems. If the speed is too slow and the filling time is too long, it will be more difficult [...]